Machine for packaging metallic leaf in rolls.



O. E. SMITH.

MAGHINE FOR PACKAGING METALLIC LEAP IN ROLLS.

APPLIOATION FILED 11113.13, 1909. RENEWED MAY 11, 1910.

981,700, Patented Jan.17,1911. I

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Application filed March 13, 1909, Serial No. 483,328.

To all whom it may concern:

Be it known that I, CHARLES E. SMITH, a citizen of the United States,residing at Oak Lawn, in the county of Providence and State of RhodeIsland, have invented a new and useful Improvement in Machines forPackaging Metallic Leaf in Rolls, of which the following is aspecification.

My invention relates to that class of machines in which the metallicleaf has first been wound with a supporting paper strip into apreliminary roll, to be then transferred onto the surface of a paperstrip with which it is to be spirally wound into a commercial packageroll.

It also relates to improved means for applying wax or similar adhesivematerial to the surface of the paper strip to cause the adherence of themetallic leaf thereto, and its removal from the surface of the paperstrip of the preliminary roll.

My invention also consists in the employment of suction to prevent themetallic leaf from winding up at the back of the prelimi nary rollduring the process of unwinding.

It also consists in heating the feeding bed in order to cause theadhesion of the metallic leaf to the paper strip while passing upwardaround the periphery of the said bed.

In the accompanying drawings :Figure 1 represents a side elevation of amachine for packaging metallic leaf embodying my improvement. Fig. 2represents a central vertical section. Fig. 3 represents a front endview. Fig. represents a section taken in the line 4 4L of Fig. 1.

In the accompanying drawings, A, A, represents the side frames of themachine, B the feeding bed over which the packaging paper strip C passesto the packaging core D, which rotates between the peripheries of thefeeding bed B and the rolls E and F, as is common in such machines. Thepackaging paper strip C passes from the supply roll G to contact withthe periphery of the rotary brush H which is caused to rotate in contactwith the surface of a bar of wax I so that through the rotation of thebrush by means of the pulleys J and K and the belt V, a light coating ofwax will be imparted to the surface of the paper strip, to cause thedesired adhesion of the sheets of metallic leaf thereto.

The rotary brush H is held in a pendent adjustable frame V, pivoted tothe side Specification of Letters Patent.

Renewed May 11, 1910. Serial No. 560,744.

frames of the machine, and the bar of wax I is likewise held in anadjustable pendent frame IV, whereby both the brush H and bar of wax Iare made capable of conjoint adjustment relatively to the paper strip,to the surface of which the wax is to be applied.

The spring actuated pressure feed roll L and the feeding bed B operatetogether for simultaneously drawing forward both, the packaging paperstrip C and the paper strip M of the preliminary roll N, in connectionwith which the lapped sheets of metallic leaf are primarily wound, andwhen these two strips pass between the said pressure roll L and feedingbed B, the metallic leaf will be caused to leave the paper strip M ofthe preliminary roll, and pass to the paper strip C of the package roll.

After passing between the feeding bed B and the pressure feed roll L,the paper strip M from which the metallic leaf has been removed passesto and is rolled up on the core 0, which rotates between the peripheriesof the rolls E and P and the feeding bed 13, the said core 0 being heldup against the roll E and the feeding bed B, by means of the movableweighted roll P.

Vt hen the preliminary roll N is being rapidly unwound there is greatdanger of having the metallic leaf run up atthe back of the unwindingroll instead of following along upon the surface of the unwound paperstrip, and in order to prevent this injurious result a suction box Qupon which the said prelimii'iary roll rests, is arranged at the outerside of the unwinding paper strip, whereby the partial vacuum caused atthe point of unwinding, will serve to retain the metallic leaf properlyupon the surface of the said strip. The suction box Q, is to beconnected with a suction blower for constant action by means of thesuction pipe S.

In order to cause an attraction between the surface of the paper stripC, and the metallic leaf which has been taken up from the paper strip M,so as to avoid danger of having it leave the paper strip in its passageto the core of the package roll 0, from the pressing point between thefeeding bed 13 and the roll L, an electric cartridge T is inserted intothe hollow shaft U of the feeding bed B, as shown in Fig. 2, electricconnection being made therewith by means of the wires a, b, shown inFig. 8, and by thls means the paper strip will become so heated PatentedJan. 17, 1911. I

as to cause the desired attraction of the metallic leaf. The heat of thefeeding bed B will also be effective within the chamber of the Windingup mechanism.

I claim as my invention:

1. In a machine for packaging metallic leaf in rolls, the combination ofa preliminary roll of metallicleaf, means for drawing the supportingstrip and metallic leaf of the said preliminary roll forward, means forwinding up the supporting strip of the preliminary roll upon anothercore for renewed winding with metallic leaf and continued use in themachine, and suction means for preventing the adhesion of the metallicleaf to the back of the unwinding preliminary roll.

2. In a machine for packaging metallic leaf in rolls, the combination ofmeans for drawing the supporting strip forward, means for feeding themetallic leaf onto the supporting strip, a rotary brush held in anadjustable frame, means for rotating the said brush in contact with thesurface of the supporting strip, and a bar of wax held in an adjustableframe, and applied to the surface of the brush for the deposit of Waxthereon.

3. In a machine for packaging metallic leaf in rolls, the combination ofmeans for winding up the supporting strip and metallic leaf into apackage roll, means for feeding the metallic leaf onto the supportingstrip, the feeding bed which forms a part of the winding up mechanism,and means for heating the feeding bed, whereby heat will be transmittedto the metallic leaf at the point of its attachment to the supportingstrip and also at a point within the rolling chamber of the winding upmechanism and the manufacture of the package rolls be facilitated.

4. In a machine for packaging metallic leaf in rolls, the combination ofmeans for unwinding a package roll of metallic leaf, with a suction boxlocated at the outer side of the unwinding paper strip, whereby thepartial vacuum caused at the point of unwinding will serve to retain themetallic leaf properly upon the surface of the said strip.

CHARLES E. SMITH.

\Vitnesses SOCRATES SCHOLFIELD, BENJAMIN L. DENNIS.

